<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>表单元素的标注</title>
</head>
<body>
    <form>
        请选择性别：
        <label for="male">男</label>
        <input type="radio" name="gender" id="male">
        <label for="female">女</label>
        <input type="radio" name="gender" id="female">
    </form>
</body>
</html>